My dad as a baby

The picture has been taken on the day of his sixth months anniversary.

I wonder why he was wearing such a strange robe and was portrayed above a fleece. Perhaps it was meant to remind a victorious kid of the ancient Roman Empire?
The truth, which I realise only now, is that he looks like his mother in this picture. The eyes and that slightly anxious expression are those of my grandmother.
The position of his hands is strange: it’s as if he had just touched something forbidden and immediately pulled back. A disciplined, obedient and adorable child.